Complete , simple and powerfull , all option for band control included ! But free for only 3 user . I have not found better 20' min for reading instruction, installing and setup for non expert , (3' min for expert ) !
Apache Tomcat - An open source software implementation of the Java Servlet and JavaServer Pages technologies
Squid Proxy - Website Content Acceleration and Distribution. Thousands of web-sites around the Internet use Squid to drastically increase their content delivery. Squid can reduce your server load and improve delivery speeds to clients.
Oracle WebLogic - Receive a complimentary technical review and consultation on moving your Oracle WebLogic Server applications into containers.
3proxy - 3proxy freeware proxy server for Windows and Unix. HTTP, SOCKS, FTP, POP3
nginx - A high performance free open source web server powering busiest sites on the Internet.
FreeProxy - Feature summary from website:* Internet connection sharing with demand dialling